| Title |
Dietary Antioxidants, Cognitive Function and Dementia - A Systematic Review
|
|---|---|
| Published in |
Plant Foods for Human Nutrition, July 2013
|
| DOI | 10.1007/s11130-013-0370-0 |
| Pubmed ID | |
| Authors |
Georgina E. Crichton, Janet Bryan, Karen J. Murphy |
| Abstract |
Antioxidant compounds, contained in fruit, vegetables and tea, have been postulated to have a protective effect against age-related cognitive decline by combating oxidative stress. However, recent research on this subject has been conflicting. The aim of this systematic review was to consider current epidemiological and longitudinal evidence for an association between habitual dietary intake of antioxidants and cognition, with consideration given to both cognitive functioning and risk for dementia and its subtypes, including Alzheimer's disease and vascular dementia. Searches of electronic databases were undertaken to identify peer-reviewed journal articles that reported on associations between antioxidant intakes (vitamins C, E, flavonoids, carotenoids) and cognitive function or risk for dementia. Eight cross-sectional and 13 longitudinal studies were identified and included in the review. There were mixed findings for the association between antioxidant intake, cognition and risk of dementia and Alzheimer's disease. Large heterogeneity in study design, differential control of confounders, insufficient measures of cognitive performance, and difficulties associated with dietary assessment may contribute to the inconsistent findings. Overall, findings do not consistently show habitual intakes of dietary antioxidants are associated with better cognitive performance or a reduced risk for dementia. Future intervention trials are warranted to elucidate the effects of a high intake of dietary antioxidants on cognitive functioning, and to explore effects within a whole dietary pattern. |
X Demographics
The data shown below were collected from the profiles of 3 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Spain | 1 | 33% |
| United States | 1 | 33% |
| Unknown | 1 | 33% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 3 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 237 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Spain | 1 | <1% |
| United States | 1 | <1% |
| Belgium | 1 | <1% |
| Unknown | 234 | 99% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 40 | 17% |
| Student > Bachelor | 36 | 15% |
| Researcher | 29 | 12% |
| Student > Ph. D. Student | 25 | 11% |
| Student > Postgraduate | 17 | 7% |
| Other | 41 | 17% |
| Unknown | 49 | 21% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 52 | 22% |
| Agricultural and Biological Sciences | 35 | 15% |
| Psychology | 22 | 9% |
| Nursing and Health Professions | 20 | 8% |
| Biochemistry, Genetics and Molecular Biology | 15 | 6% |
| Other | 42 | 18% |
| Unknown | 51 | 22% |
Attention Score in Context
This research output has an Altmetric Attention Score of 42. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 06 May 2020.
All research outputs
#820,702
of 22,714,025 outputs
Outputs from Plant Foods for Human Nutrition
#27
of 701 outputs
Outputs of similar age
#7,425
of 197,947 outputs
Outputs of similar age from Plant Foods for Human Nutrition
#1
of 11 outputs
Altmetric has tracked 22,714,025 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 96th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 701 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 8.3. This one has done particularly well, scoring higher than 96% of its peers.
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We're also able to compare this research output to 11 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 90% of its contemporaries.